irqchip/gic-v4.1: Implement the v4.1 flavour of VMOVP
With GICv4.1, VMOVP is extended to allow a default doorbell to be
specified, as well as a validity bit for this doorbell. As an added
bonus, VMOVP isn't required anymore of moving a VPE between
redistributors that share the same affinity.
Let's add this support to the VMOVP builder, and make sure we don't
issue the command if we don't really need to.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Link: https://lore.kernel.org/r/20191224111055.11836-9-maz@kernel.org
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